ABAP Select data from SAP table WRS_PROMOTION_FEEDER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WRS_PROMOTION_FEEDER table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to WRS_PROMOTION_FEEDER. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the WRS_PROMOTION_FEEDER table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_WRS_PROMOTION_FEEDER TYPE STANDARD TABLE OF WRS_PROMOTION_FEEDER,
      WA_WRS_PROMOTION_FEEDER TYPE WRS_PROMOTION_FEEDER,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <WRS_PROMOTION_FEEDER> TYPE WRS_PROMOTION_FEEDER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WRS_PROMOTION_FEEDER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WRS_PROMOTION_FEEDER
  INTO TABLE IT_WRS_PROMOTION_FEEDER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRS_PROMOTION_FEEDER
*  INTO TABLE @DATA(IT_WRS_PROMOTION_FEEDER2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_WRS_PROMOTION_FEEDER INDEX 1 INTO DATA(WA_WRS_PROMOTION_FEEDER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WRS_PROMOTION_FEEDER ASSIGNING <WRS_PROMOTION_FEEDER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRS_PROMOTION_FEEDER>-AKTNR = 1.
<WRS_PROMOTION_FEEDER>-VKDAB = 1.
<WRS_PROMOTION_FEEDER>-VKDBI = 1.
<WRS_PROMOTION_FEEDER>-AKTKT = 1.
<WRS_PROMOTION_FEEDER>-IS_REF_PROMO = 1.

ENDLOOP.

LOOP AT IT_WRS_PROMOTION_FEEDER INTO WA_WRS_PROMOTION_FEEDER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRS_PROMOTION_FEEDER-REF_PROMO, sy-vline,
  WA_WRS_PROMOTION_FEEDER-AKTKT_REF, sy-vline,
  WA_WRS_PROMOTION_FEEDER-SPRAS, sy-vline,
  WA_WRS_PROMOTION_FEEDER-AKART, sy-vline,
  WA_WRS_PROMOTION_FEEDER-WAELA, sy-vline,
  WA_WRS_PROMOTION_FEEDER-AUFAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRS_PROMOTION_FEEDER you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_WRS_PROMOTION_FEEDER TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_WRS_PROMOTION_FEEDER INTO WA_WRS_PROMOTION_FEEDER.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field AKTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-AKTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-AKTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REF_PROMO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-REF_PROMO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-REF_PROMO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field ARTNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-ARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-ARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEBME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-MEBME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-MEBME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-SATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MELOG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-MELOG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-MELOG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEBPR
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-MEBPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-MEBPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEAUF
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-MEAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-MEAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ABELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PROMOTION_FEEDER-ABELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PROMOTION_FEEDER-ABELN.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_WRS_PROMOTION_FEEDER_STR, 
AKTNR TYPE STRING,
VKDAB TYPE STRING,
VKDBI TYPE STRING,
AKTKT TYPE STRING,
IS_REF_PROMO TYPE STRING,
REF_PROMO TYPE STRING,
AKTKT_REF TYPE STRING,
SPRAS TYPE STRING,
AKART TYPE STRING,
WAELA TYPE STRING,
AUFAR TYPE STRING,
BEKTY TYPE STRING,
KSBEK TYPE STRING,
AKVST TYPE STRING,
AKAST TYPE STRING,
AKBST TYPE STRING,
VKGST TYPE STRING,
EKGST TYPE STRING,
BEKST TYPE STRING,
AKNBS TYPE STRING,
AKNTH TYPE STRING,
NARTS TYPE STRING,
ATNPO TYPE STRING,
EKDAB TYPE STRING,
EKDBI TYPE STRING,
ALIVO TYPE STRING,
ALIBI TYPE STRING,
SPDAB TYPE STRING,
SPGRU TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
PDANZ TYPE STRING,
PLTYP TYPE STRING,
ARTNR TYPE STRING,
MEBME TYPE STRING,
AKPOS TYPE STRING,
SATNR TYPE STRING,
MATKL TYPE STRING,
AKTHE TYPE STRING,
BZQFI TYPE STRING,
AKBSP TYPE STRING,
BEKTY_P TYPE STRING,
SPDAT TYPE STRING,
SPGRU_P TYPE STRING,
AUFME TYPE STRING,
PLVKP TYPE STRING,
VPEIN TYPE STRING,
PLEKP TYPE STRING,
PLEKN TYPE STRING,
EPEIN TYPE STRING,
WAEEK TYPE STRING,
WAELA_P TYPE STRING,
MEINS TYPE STRING,
MELOG TYPE STRING,
MEBPR TYPE STRING,
MEAUF TYPE STRING,
MIAMG TYPE STRING,
FBDAT TYPE STRING,
SBDAT TYPE STRING,
FLDAT TYPE STRING,
SLDAT TYPE STRING,
APSTP TYPE STRING,
BEDAT TYPE STRING,
ABELN TYPE STRING,
EKKPS TYPE STRING,
VKKPS TYPE STRING,
VZKPS TYPE STRING,
EPRGR TYPE STRING,
NVKP TYPE STRING,
REB_VALUE TYPE STRING,
REB_PERC TYPE STRING,
REB_STATUS TYPE STRING,
NUMSITE TYPE STRING,
NUMCOUP TYPE STRING,
NUMDISC TYPE STRING,
NUMBONU TYPE STRING,
VKGST2 TYPE STRING,
TRAFFIC_LIGHT TYPE STRING,
LIGHT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRS_PROMOTION_FEEDER_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_WRS_PROMOTION_FEEDER_STR-AKTNR sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VKDAB sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VKDBI sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKTKT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-IS_REF_PROMO sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-REF_PROMO sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKTKT_REF sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SPRAS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKART sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-WAELA sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AUFAR sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-BEKTY sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-KSBEK sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKVST sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKAST sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKBST sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VKGST sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EKGST sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-BEKST sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKNBS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKNTH sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-NARTS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-ATNPO sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EKDAB sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EKDBI sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-ALIVO sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-ALIBI sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SPDAB sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SPGRU sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EKORG sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EKGRP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VKORG sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VTWEG sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-PDANZ sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-PLTYP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-ARTNR sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-MEBME sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKPOS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SATNR sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-MATKL sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKTHE sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-BZQFI sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AKBSP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-BEKTY_P sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SPDAT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SPGRU_P sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-AUFME sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-PLVKP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VPEIN sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-PLEKP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-PLEKN sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EPEIN sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-WAEEK sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-WAELA_P sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-MEINS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-MELOG sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-MEBPR sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-MEAUF sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-MIAMG sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-FBDAT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SBDAT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-FLDAT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-SLDAT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-APSTP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-BEDAT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-ABELN sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EKKPS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VKKPS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VZKPS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-EPRGR sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-NVKP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-REB_VALUE sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-REB_PERC sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-REB_STATUS sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-NUMSITE sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-NUMCOUP sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-NUMDISC sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-NUMBONU sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-VKGST2 sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-TRAFFIC_LIGHT sy-vline 
WA_WRS_PROMOTION_FEEDER_STR-LIGHT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.